1122021210251 has 2 divisors, whose sum is σ = 1122021210252. Its totient is φ = 1122021210250.

The previous prime is 1122021210179. The next prime is 1122021210283. The reversal of 1122021210251 is 1520121202211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1122021210251 - 2²² = 1122017015947 is a prime.

It is not a weakly prime, because it can be changed into another prime (1122021210451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561010605125 + 561010605126.

It is an arithmetic number, because the mean of its divisors is an integer number (561010605126).

Almost surely, 2^{1122021210251} is an apocalyptic number.

1122021210251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122021210251 is an equidigital number, since it uses as much as digits as its factorization.

1122021210251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160, while the sum is 20.

Adding to 1122021210251 its reverse (1520121202211), we get a palindrome (2642142412462).

The spelling of 1122021210251 in words is "one trillion, one hundred twenty-two billion, twenty-one million, two hundred ten thousand, two hundred fifty-one".